User Login
Forgot your password? Click Here.
Playlist
What are playlists? Click Here.



A history and a survey of the scientific discoveries and technological developments that have led from the ancient geocentric theories that posited the Earth as the center of the world to the designs for interplanetary travel and the construction of a 10-million-inhabitant city in space. 11-part series, 28 minutes each.



 
                

Item#: This title is currently not available.
Copyright date: ©1989



The Series Includes : Origins of the Universe | Introduction to the Solar System | The History of Space Technology | The First Steps in Space Exploration | Flight to the Moon | Living and Working in Space | The Space Shuttle | The Shuttle in Close-Up | The Earth in Perspective | The Applications of Space Technology | Living in Space
     


Only available in the US and Canada.




What Magnets Do

A compass needle points North because the Earth has a magnetic force that attracts the metal in the needle. Bob Symes shows what happens to the compass needle if a wire with an electric current is placed next to the compass. He proves that this princ...(more details)
 
How Light Changes Color

What produces color, and why does a color look different when viewed through lenses of different colors? Bob Symes investigates the mysteries of color with several simple experiments. By spinning a disk that has been painted with equal segments of bl...(more details)
 
What Happens When Water Freezes?

Bob Symes explains burst water pipes and icebergs at the same time; they share the same scientific principle. Water expands when it freezes, a fact proven by Bob's freezer and some sample containers of water that have been left inside. When a piece o...(more details)
 
How Lenses Work

Many people wear glasses to help them see, but how do the lenses in the glasses work? Bob Symes demonstrates the differences in the images produced by flat, convex, and concave lenses. He shows how a lens bends light according to the thickness and di...(more details)
 
How Planes Fly

The Wright Brothers discovered the secret of heavier-than-air flight, and Bob Symes explains just how airplanes stay up. The simple model of an airplane wing demonstrates the importance of its shape (rounded on top and slightly concave underneath) an...(more details)
 


See additional titles in Astronomy